Scraper for disk drills.



A. GOETZ.

SCRAPER FOR DISK DRILLS. APPLICATION FILED MAY 1, mm.

Patented Oct. 13, 1914.

THE NORRIS PETERS ca. PHOTO-LITHO. WASHINGTON D. c

unnrrm STATES PATENT onrron.

ANTON eonrz, or BERWIOK, NORTH DAKOTA.

scnArEit FOR DISK Drums.

Specification of Least ram.

Patented Oct. 13, 1914.

Application filed May 1, 1914. Serial No. 835,615.

To all whom it may concern:

Be it known that I, ANTON Gon'rz, a citizen of the United States,residing at Berwick, in the county of McI-Ienry and State of NorthDakota, have invented certain new an effective manner to drill the grainwell.

into the seed bed.

A further object of the invention is to provide a scraper for diskdrills which is comparatively simple and inexpensive in itsconstruction, which automatically compensates for wear, which does notincrease the draft or interfere with the usual op eration of the drill,and which can be adjusted according to the space between the drilldisks.

With these and other objects in view, the.

invention consists in certain novel combinations and arrangements of theparts as will more fully appear as the description pro-. ceeds, thenovel features thereof being pointed out in the appended claims.

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawings, in which Figure 1 is aside elevation of a disk drill provided with a scraper constructed inaccordance with the invention, one of the disks being removed to bringout more clearly the manner of mounting the scraper between the disks.Fig. 2 is a rear view of a disk drill provided with the scraper. Fig. 3is a sectional view on the line 3-3 ofFig. 1, showing the manner inwhich the scraper engages the disks. Fig. 4 is a detail view of thescraper detached.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

For the purpose of illustration the scraper has been illustrated asapplied to a fconventional form of disk drill which will only bedescribed in a very general manner since it constitutes no part of thepresent invention. 3

The numeral 1 designates. the boot of the disk drill which is arrangedat the top of the disks 2, the forward end ofthe boot terminating in anarm 3 to which a draw bar can be attached, while the rear end of theboot carries a bracket 1 which projects be tween the disks and uponwhich the inside scraper is mounted. The standard 5 projects downwardlyfrom the boot 1 and has the disks 2 journaled thereon by means ofsuitable bearings 6. The disks diverge rearwardly in theusual mannerwith the for ward edges thereof in contact with each other, the bearing6 being of such a nature as to admit of the edges of the diskbeingalways maintained flexibly in contact as they become worn and decreasein diameter. The usual seed spout 7 passes downwardly through theboot 1at the rear of the standard 5,. and a deflector S is shown as disposed Oat the rear of the seed spout 7 so as to cause the grain to drop in themost eflective manner.

The scraper includes a pair of scraping bars 9 which have a spring 10interposed between the lower and inner ends thereof, the extremities ofthe spring receiving and being engaged by suitable positioning lugs 11.Projecting laterally from each of the scraping bars 9 near the oppositeend thereof is a pivot arm 12, the two arms overlapping each other andbeing connected by the pivot bolt 13 which also serves to secure thescraper to the bracket or arm 4 at the rear end of the boot 1. Thespring 10 forces the scraping bars 9 outwardly so as to hold them in ayielding contact with the inner faces of the two disks 2. As the disksro-.

volve the bars 9 act in the usual manner to scrape the dirt therefromand the yielding action of the spring 10 tends to force the rear edgesof the disks 2 apart. and hold the forward edges thereof in a flexibleengagement with each other. The action of the spring 10 also serves tocompensate forwear upon the scraping bars, since as the bars become wornthey are forced farther apart so as to always be held against the sidesof the disks 1 with the same degree of pressure.

The lateral arms 12 are preferably adjustably connected to the scrapingbars 9 so that they can be moved in and out thereon to admit of thescraper being properly ad justed forfany disk drill. For this purposethe arms 12 are shown as formed with slots 15 engaged by clamping bolts16. lVhen the bolts 16 are loose the lateral arms 12- can be shifted inand out so as to draw the scraping bars 9 together or throw them fartherapart according to the space between the rear edges of the disks on theparticular drill to which the scraper is to be attached; After the arms12 have been properly adjusted upon the respective scraping bars 9, theyare pivotally connected by the bolt 13 and attached by the sauce bolt tothe inwardly projecting arm 4 at the rear end of the boot 1. Wheninposition the scraping bars 9 are disposed between the two disks 1 andmaintained in a yielding contact therewith by means of the spring 10, aspreviously described. The upper ends of the scraping bars 9 are shown ascut away at 9 to insure a proper clear-- ance of the rear end of theboot and prevent any interference thereof with the proper operation ofthe scraper.

Having thus described the invention, what I claim as new and tersPatent, is

1. The combination of a disk drill having a scraper supporting arm onthe boot thereof, a pair of scraping bars arranged between the, disks,lateral arms projecting from the scraping bars, means for pivotallyconnecting the lateral arms to the scraper supporting arm of the boot,and a spring interposed between the scraper bars to swing the same apartand hold them in yielding engagement witkthe disks.

2. The combination of a disk drill having a scraper supporting arm uponthe boot thereof, a pair of scraper bars arranged bedesire to secure byLetscraper bars so that they can be moved in and out thereon, means forplvotally con 'necting the lateral arm and mounting the device upon thescraper supporting arm of the boot, and yielding means acting upon thescraper bars to swing them apart and hold them in a yielding engagementwith the disks.

3. The combination of a disk drill having a scraper supporting armprojecting from the boot thereof, a pair of scraping bars arrangedbetween the disks, lateral arms projecting from the scraping bars towardone end thereof, positioning pins projecting from the scraping bars atthe opposite ends thereof, means for pivotally connecting the lateralarm and mounting the device upon the scraper supporting arm of the boot,and a spring interposed between the scraper bars and engaging thepositioning pins thereof, said spring serving to swing the scraper barsapart and hold them in a yielding engagement with the disks.

4. The combination of a disk drill having a scraper supporting armprojecting from the boot thereof, a pair of scraper bars interposedbetween the disks, lateral arms projecting from the scraper bars, meansfor adjustably connecting the lateral arms to the scraper bars so thatthey can be moved in and out with respect thereto, a bolt pivotallyconnecting the lateral arms and engaging the scraper supporting arm ofthe boot, positioning pins projecting from the scraper bars, and aspring interposed between the scraper bars and engaging the positioningpins thereof, said spring serving to swing the scraper bars apart andhold them in a yielding engagement with the disks.

In testimony whereof I afiix my signature in presence of two witnesses.

ANTON GOETZ.

tween the disks, lateral arms projecting from Witnesses:

the scraper bars, means for adjustably con- O. R. BLASING,

necting the lateral arms to the respective A. I. BEDAHL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

' v Washington, D. C.

